Snelling machine



May 31, 1932 w. s. TORRENCE 1,861,198

SNELLING MACHINE Filed sept. 2e, 1931 4 'sheets-sheet 1 N ENTOR Wafen arrefzc@ May 31, 1932. w. s, TORRENCE SNELLING MACHINE FiledSept. 26, 1931 4 Sheets-Sheet 2 INVENTOR zizfjbrfe/Z -BY Mmm A REY May 31, 1932. w. s. ToRRENcE SNELLING MACHINE Filed Sept. 26, 1951 4 Sheets-Sheet 3 .Rmw om E mm .m R f @.40 L li.. m mr w N m w@ 21 I IHH I 4m Y 15 IM ,.-1 E .L LimNLwlhlHmMnwf --i W I-, w n h NN mw WN NN NM Mmmm NN i mw @l Vy Si l MN mm ww NmwM wm mm mm NN @N NN N NN] NN ,I QN Il 1;H h W Nk I Y *1| Q Patented May` 31,' 1932 WALTER s. TORREMGEQOENEWYORK, img-Y., Assiefivon To W. mMEYEBa son, me., or

,PATENT -ioFr-rce 1 y BRQOKLYN; NEW-Yoann CORPORATIONOFNEW'YORK j i fsNnLLING MACHINE g i Appncatimfmeseptember 2s1931. seriarNofssaaesn This invention rebates to ,the y,so-calle snellng ofishzhooks,

The fob-j ects 'ofthe invention ,aretprovide a machine for the punpose,vvhich=fwill be as ne arly1 autom atie-aas; possi-ble and at ,the same time, ,be 'of relatively 'simpleV construction, practical *1 and sturdy v design and fivhich, in

particular, will accurately f .and ,uniformly structure .may i: be modifiedaandf fch anged1i as regards thiszillustratiomg allfwithinthe; true intent'andbroad scope of; thev claims. v e

Engg 11:, yisfafzplaai view of the machine-f and Fig.; 2 is fra: sidmelevation of; the fsaine, the Ah older 1oniguide;ioiptliegut;beingfgolnittedA in thef'irstofthese views-thesshaft for support,- ing. .the-5 vsame:y being indicated asigbroken.- away Fi-gsn and .ea'refcross-sectional viewslrof the 4 'machine I:as sonhsubstantially Athe .-planesof linesflS-f'and'f-l ofrFigL-:Q ;:ig. 5I-is' a view sloolringat the right hand-endet theV machine FigflGisz a brokenflongitudi'nahsectional View illustrating thelfhoolry ca-rrjvir1gy and the ydierential screwfafeed for. the winding .mechanism yfEigiis a broken sectional detail' of thestop and@ start vcontrol vshaft `;.;Fig.: 8 lis an venlarged f* elevationr of the-ffleft'. hand end of the: machine pFigs. 'Qiand- 10 1,are broken .plan and vertical' sectional views re spectivejly of theawrapping, cuttinguand tyingzf'mechanisni at fthe left-,hand endf fof theumach-,ine ;,F,ig. 11 vis a broken z -perspeetivef-detail,of the hook holding, -tyingf and cuttingldevices ;::Fgs. ,12 and 131 ,are broken; isect1' onal details .of oper- Vating portionsfofthethreadgriqpmng device f15,.-fthe gutsnell-leade1aor line, 16,-, and the thread or Wire,or strand of wrapping material, 17. c y l The hook is positioned in a chuck or holder on the end of a shaft-18: and shownas con sisting of an axially located groove 19, inthe half--seo`tional forward endportionf() ofthe shaft, receivingfthe shank ofthe hook, an overstanding,, pivoted spring pressed lever 21,AV for.,.holdingthe shank in such groove and an over-standing inverted .V-shaped guide 22 Vfor holding thelooped end oftheghook, Fig. V11.V This confining guide provides with the ychannel 19, a. socket for the barb end of the hook `and such guide is shown as detachably secured at 23,1 to ahead member 24,50 that substitutions may be made for different sizes rand shapes ofhooks. rThe holding element v21 Vfor the shank end'of the hook Vis shovvnasjpivoted atQ in a head 26, on lthe half' sectionenid of the shaft 18 and as equipped with a handle extension 27,"by

which' it canbe shifted against the Vforce of spring 28. `Thischuck construction rmlv holds the hook'for the Winding-on operation andat the lsame time, permits the' hook to be readily removed and enables it being quicklysecured inposition.

The overstanding barb holding portion 22 of'thehook chuck rotates with thev shaftlS, but alsohas longitudinal travel impartedito itfor effecting the necessaiy traverse for'the yWinding-on operation. The headll'carrvi Ving such'portion of the chuck is therefore shown vasmounted*onthe end ofv a tubular shaft or sleeve 29, surrounding' sha-ft 18 `and journalled in' a suitable bearing"80,`Fig. 10.

Advantage'is' taken of'the sliding movement vof head 24g'to operate'a knife for severingfthe Wrapping Amaterial.y .As Vindicated `)Liarticularly in Figs.; 9, 10 and 11, this knife 31,.,is ofj'generally semi-circular'cross-section to ylit about the half round portion 2O` 'ofshaft 18 and is carrie-d by bracket v32,- detachably secured tothe face ofheadll. The Aouter or activeend ofthe knife slides through-.a segmental slot 33, VYin -head Q6,V andk the part which fattimesprotrudes past .said head .is transverselyislotted atone edge at,34:to receive the ,strand and e'iect severance of. the

same as the knife is wit-hdrawn in such head. The operation of this segmental knife through this slot also serves to slidingly key the two shafts 18 and 29 together.

The thread or strand is guided to a definite Winding-on point by a suitable guide, shown in Figs. 2 and 8, as consisting` of a thread tensioning device 35, adjustably secured at 36, on a supporting shaft 37, mounted on the base of the machine below and parallel to the hook carrying shafts.

The hook carrying shaft 18 is rotated in the illustration by a pulley 38, fixed thereon and which may be belt-driven direct from a small electric motor. The surrounding tubular shaft portion 29 is driven from shaft 18 through the keying engagement of the segmental knife 31, carried on the end of such tubular shaft and sliding through the head 26 on the end of shaft 18.

The traverse or winding-on feed of the c oncentric tubular shaft portion 29 is effected from shaft 18 as a result of the differential of two differently pitched screw sleeves carried by and rotating with said shaft. The first or coarsely pitched screw sleeve is designated 39 and is shown in Fig. 6 as directly fixed to the drive pulley which is keyed to shaft 18. The second or more finely pitched screw sleeve 40 is shown in this same view as slidingly keyed on the shaft at 41, in engagement at one end with the first screw sleeve and at the opposite end with a collar 42 on the inner end of the tubular feed shaft 29.`

The two screw sleeves 39 and 40 are corelated to gainthe differential effect by providing the two half nuts 43, 44. respectively engaged therewith and carried by a carriage 45, sliding on guide rods 46. 47. The latter is shown as mounted eccentrically on the machine base by bearings 48 and as adapted to be rotated for the purpose of raising and lowering the carriageto mesh and unmesh the half nuts, by a strap 49. passing over the rotary hub portion 50 of a control handle 51, Fig. 3. A` quick return spring 52 is shown in Figs. 1 and 2, acting on this carriage to shift the same to the right when the handle 51 is rocked to release the half nuts from the screw sleeves.

The quick return movement of the carriage isutilized to return the second or sliding screw sleeve 40 and to snap the knife back to sever the strand, through the provision of a hook 53 on the carriage, positioned to engage back of the flange 54 on the collar 42 ,on the knife carrying sleeve or tubular shaft 29, as represented in Fig. 2. i

lOn the forward or feed movement of the carriage, the knife is suddenly advanced, at the end of the wrapping action by engagement of a projecting lug or abutment 55, with the opposite side of the flange 54. This knife projector is shown as adjustably secured on the carriage at 56, to take care of different lengths of wrap.

The outstanding flange 54 on the knife carrying shaft has an additional function, in that it is utilized to trip the machine at the end of the winding-on and knife projecting action. For the purpose, there is provided in the illustration, a handle 57 at the forward side of this fiange connected with a rod 58,

"slidinglykmoun'ted in the frame and having at the right hand end of the machine, Figs. 5 and 7, a shouldered or reduced portion 59, designed to allow a spring pulled hook to drop into engagement w1th a stop shoulder 61, on the end of shaft 18, said rod also having a lever or cam portion 62, adapted when the rod is rocked right handedly to lift the hook 60 out of stopping engagement with hook rotating shaft 18.

The sliding control shaft 58-is shown in Fig. 7, as normally shifted toward the right by a spring 63, with the full rounded part of the same supporting the stop hook 60 out of engagement with the sto shoulder 61 on the hook rotatin shaftl an it will be evident that when th1s control rod is shifted to the left,"the, hook 60 will dropdown over the shouldered portion 59 of the rod and hence be pulled by itsspring 64, into holding engagement with the shoulder 61, to thereby stop rotation of shaft 18 in definite position with the knife at the lower' side of the shaft, the drive belt on pulley 38 slipping at such time, while the motor may continue in operation.

To enable adjustment for stopping the hook rotating shaft at theproper instant, the stoppin handle 57 vis shown as adjustably couple to the sliding control rod 58 by a turn buckle connection comprising a double-ended nut 65, reversely screwed at its opposite ends u n the collar 66, fixed on the rod and the hu 67 of such handle slidingly mounted on the rod. By rotating this turn buckle nut, it will be seen that the control handle may be readil shifted longitudinally of the'rod without c anging the position of the rod relative to the stop hook, a stop shoulder 68 on the left hand end of the rod 'insuring always thesame definite position of the rod as acted on by the spring 63, Fig. 7. The knot tying mechanism is illustrated particularly in Figs. 8 to 13, and as there A spring 76 is shown for rocking this gripper y iesemes post 'left handed-ly in.v Fig. 8 ff andi' "forf returning the same backagainstfna `.stop Lshoulder 77,1ng. 1o.

sameifto carry' the..` gripperzflingers. .into f the hollow l of the, projecting knife,J there isziprovided'a rotatablyy supported `member 78 nenl"se eee

fteredconcentrically yrin vthe enlargedopen end :portion 79 of.l1ub.74,.:and carryinga pin `orprojection -80,lcs-operating invaan .inclined cam slot 81:;:formedsiniithe hub.V -Member 78 is shown asoperatedy byia flexible pull connection: 82 extending :partly .thereabout andr-iactuated; fori example, .byf a'A suitably located foot pedal. With depression of; such afoot pedal connected-with cablev82," it will be; evident; that: through the :cam i construction idisclosed, the f gripper. lingers iwillpberota-ted toward theawindingon aXiszand in` such YmovementV will vbe advanced longitudinally rintofzt-he ahollow V.of the.fknife,lto af: position suclrasindicatedinfFig 11.

-JThe parts-.are timed' so thattheknife blade will be projected a Vfew turns before coml:pletion .1 ofV the wrapping, sorthat. :as .shown vparticularly in fFigs.- 9, 10 11,7the last; few

turns :will be wrappedabout'the projecting portion of the 4knife ascindicated at; 17a; and the nal.v turnwill Vdrop in the kniieislot" as indicated at llb. This substantially -rafdially extending portionk 17 b. yof the strand is the part.v which is gripped-.1 andfheld byV` the gripper as the 'knife blade retractsJto out the *strand andl the return'movement'foft thefgrilp- .jaw1 members to 'rock themf in@ a iclosingfdirection `against "the spreading` tendency of plunger'83,zFig; 8. .'The 4jaw:opening'plunger -83 is actuated in'therocking; advancing movement Vof theLgripper bythelowerfend wof the same; riding over a' camr86, Figs. l2'andl3- .This Ica-m is shown carriedKT by ,za' block-:87,

Vslidingly: mounted in the "bushing f 88, which rforms the sbearingffor. the hub' and aslpressed torthe (right 1in. Fig. 13 by'V 'spring'.'89- This sliding mounting 'off the jaw opening cam mento'i the `,gripper tofpreventopening of the jaws'as :theydraw outxthe strand andpull thelastxfew loops closed aboutth'eesame.'v In the Vforward :or :advancing movement, the

`plunger'is obliged' tofridedireotlyuprrover the cam and hence the jaws'..areithenfpositively `opened-iwide enough; to1 surely passabout .the

strand at' lbywhere it eX-tendssubstantially radially :across the hollow ofthe knife andv vthroughftheicutting notch .in the edgeo the knife. The cam' v86v is relativelypositioned to cause the jaws to open asithey enter the;hol lowgofffthelknife andy to then snap closed-over the 'strandt '.The. pathl of 'movement `of the `plungerwith'*respect tothe cam is indicated generallyby the broken line circuit 90; in Fig. :l-which shows how in the advancing allgrement', the 'plunger' will step up and down overathe"cam'projection to open and then close the jaws onthe.4 strand and will then .per- :mitlthesjaws tofremainf closed in the return :movement ofr4 the gripper, there ybeing suf- .icient freedom of movement asv betweenthe :pin 8O.A and camv slot 8l,toik enable theplunger tozpassfback .tothe side ofthe cam projection as in Fig.1l2, andk the jaws thus. to. remain 'clesedf-during'the'entire back stroke of the 7S, smay; have an ladjustable mounting in the frame ofthezmachineas indicated at 92. :To zaccuratelyfdetermine the rocking.- and advancing? movement `of,` the gripper, a stop adaptedit-oybe engaged. by the kpost of the gripper is.` indicated at 93, adjustably mounty -edzat`94 omthe supporting rod 37, Figs. l, 2

.aH'd'S. v i

VForpositioning iand guiding kthe gut or "other elementfwhich .is' to ,"be. attached to 4the iliooln.l a tubular; guide maybe provided, such asgillustrated atl95, in Fig. .2, adjustably anountedion 'the outer end'ofthek rigid sup- .portln'gfshaft 37. fTlie latter is indicated as adjustably'mounted at 96 -on thebase oi the fmachineffor permitting ofsimultaneous ad'- justnient of all. partscarried by the shaft and including: innthis instance,- the snellvk guide 95, the flimithfstopy 93 for .the vgripper and the strand'r positioning iand tensioning device* 35.

,towardrtheright'as infFigs. 43, 4 and 5 to 'i throwfthe'hook GOfout oi holding engagement rotated by pulley 38land the two screw sleeves 39, 40 turning therewith, effect a feed or traverse of the outer member 22 of the hook .holding clutchV so as to advance the winding along the overlapped portions of they hook shank and Snell. This traverse movement is equivalent to the pitch differential of the two screw sleeves since the fixed screw sleeve 39 through half nut 43 tends to advance the carriage 45 at one speed and the half nut 44 on said carriage, engaging the finer pitch screw sleeve 40, cuts down' such advance and pushes screw sleeve 40, through half nut 44 along the shaft ata rate of feed equal to such differential. This slidingly keyed screw sleeve by abutment with collar 42, forces the chuck sleeve 29 toward the left and the latter through head 24 slides the hook along in its positioning groove 19.

As the wrapping nears completion, the abutment on the sliding carriage engages flange 54 and thereby provides a direct or higher speedr connection between the sliding carriage andthe chuck sleeve 29, advancing the latter at the full speed provided by the coarse pitch screw sleeve 39 and thus projecting the segmental knife 31 past the end of the hook shaft 18 to cause the last few turns of the strand to wrap about said segmental memberand the final turn to drop in the cutting notch 34 in the edge of such member, as appears in Figs. 9, 10 and 11. As the parts reach this condition, the abutment fiange 54 engages the starting handle 57 and carries the same with it towards the left in Figs. l, 2 and 7 so as to shift control rod 58 and thereby permit the stop hook to drop down over the shouldered portion 59 of the rod and hence engage the stop cam 61. This brings the hook carrying shaft to rest in the position shown in Figs. 2 and 6, with the knife at the underside of the shaft. Thereupon the pedal or other device engaged with connectionr 82, Figs. 8 and 10, is operated to swing the gripper jaws 7 0 toward the right in Fig. 8 and to advance them, through cam action 80, 81 into the hollow of the projected knife, the jaws opening to embrace and then closingr uponthe portion of strand in the cuttinfr notch, as in Fig. V11 through coopera.- tion of the jaw opening plunger 83 and cam 86. Vith the jaws thus gripped with the end turn of the wrapping, the handle 51 is turned left handedly in Figs. 3 and 4 to rotate the eccentric mount 47 of the carriage and Ahence disengage the halfv nuts 43, 44 from to bite off the strand by the coo rative action of the cutting notch in the kni e guide 26 on the end of the hook shaft.

Return of the gripper isnow permitted, as by removal of pressure on a foot pedal engaged with connection 82, whereupon spring 76 withdraws the gripper jaws on an incline from the position shown in Fig. 11 to a position corresponding to Fig. 9, the jaws remaining -f closed on the strand during this kmovement by reason of the cam arrangement 86, Figs. 12 vand 13 so as to. tighten the widened endloops down over this extracted.

end portion of the wrapping.

i-The snelled hook may then be slipped out of the chuck'and the set of operations be repeated. f

. What is claimed is: f

1. A hook snelling machine, comprising in combination, relatively rotatable hook holding and strand guiding means for serving a wrapping about overlapped portions of a hook shank and gut, or the like, and means for automatically severing and tying the Wrapping at the end of s'uch serving operation.

. 2. A hook snelling lmachine, comprising in combination, mechanism for serving a wrapping about overlapped portions of a hook shank and gut, or the like, and means for severing and tying the wrapping at the end of a predetermined serving operation.

3. A hook Snelling machine, comprising in combination, mechanism for serving a wrapping aboutoverlapped portions of a hook shank and gut, or the like, means for severing and tying the wrapping at the end of a predetermined serving operation, including a hollow knife having a cutting edge, means for advancing said knife to receive the final turns of the wrapping thereabout and for then retracting the knife to sever the wrapping material and a gripper adapted to enter they hollow of the projected knife and to withdraw the severed material through the final turns formed about the projected knife.

4. A hook Snelling machine, comprising in combination, mechanism for serving a wrapping about overlapped portions of a hook shank rand gut, or the like` means for severing and tying the wrapping at the end of a predetermined serving operation. including a hollow knife having a cutting edge, means for advancing said knife to receive the final turns of the wrapping thereabout and for then retracting the knife to sever the wrapping material and a gripper adapted to enter rthe hollow of the projected knife and to withdraw the severed material through the final turns formed about the projected knife, the cutting edge of the knife being provided by a' cutting notch into which the last turn of the wrapping drops into position for engagement bythe gripper. 5. A khook Snelling machine, comprising in combination, mechanism for Serving a wrapping about overlapped portions of a hook shank and gut, or the like, means for severing and tying the wrapping at` the end of a predetermined serving operation, including a hollow knife having a. cutting edge, means for advancing said knife to receive the final turns of the wrapping thereabout and for then retracting the knife to sever the wrapping material, a gripper adapted to enter the hollow of the projected knife and to withdraw the severed material through the final turns formed about the projected knife and means for automatically positioning the parts for entry of the gripper into the hollow of the knife at the end of the serving operation.

6. In combination, a rotating hook carrier including means for advancing'the hook as it is rotated to traverse a winding thereon and a winding severing means rotating with said hook carrier.

7. In combination, a rotating hookcarrier including means for advancing theV hook as it is rotated to traverse a winding thereon, a winding severing means rotating with said hook carrier, means for automatically stopping said hook carrier with the severing means in a predetermined position and a winding tying means for cooperative action with said severing means in the stopped position of the carrier.

8. In combination, relatively rotatabley hook carrying and serving means, means for a wide-looping a final turn'. or turns of the wrapping and a gripper for withdrawing' the end of the wrapping through said loop or loops.

9. In combination, relatively ro-tatable hook carrying and strand serving means and differential screw mechanism for effecting relative traverse of said hook carrying and strand serving means.

10. In combination, relatively rotatable hook carrying and strand serving means, differential screw mechanism for effecting relativev traverse of said hook carrying and strand serving means, including differently pitched screw sleeves rotatable together or shiftable one longitudinal with respect to the other and cooperating nut element-s engaged with the respective sleeves.

11. In combination, a rotatable shaft for supporting a hook, a sleeve over Said shaft rotatable therewith but movable longitudinally of the same, a hook engaging member on said sleeve for holding and advancing a hook supported by the shaft, a fixed screw member on theshaft, a differently pitched screw member rotatable with but slideable along Vthe shaft for advancing the Steeve thereon and a travelling carriage provided with nut elements engaged respectively with the screw members.

12. In combination, a rotatable shaft for supporting-a hook,` axsleeve. over. said .shaft rotatable therewith but-movable longitudinallyof the same, a. hook engagingmember on said .sleeve for, holdingand ,advancing a hook., supportedv 1by the shaft,` ,a vfined screw memberon theV shaft, a` differently pitched screwmember rotatable. with but slideable alongY the. shaft for advancing the sleeve thereon, a travel-ling carriage provided with nut elementsQengaged respectively with the screwmembers, a-knifecarried by the rst mentioned sleeve; a member on thecarriage for advancingsaid Sleeve independently of the movable. screw sleeve' and Ameans yfor-releasing ,th'e `,carriage from the screw mem bers and. for returning said carriage and first mentioned sleeveto afstarting ,position,..

' 13. In combinatiom mechanismrfor servinga, .wrapping Iabout overlapping` portions of hookfshank `and gut, or the like, and a hollow, member projecta-ble to receive a. pore` tion 5 of such wrapping thereabout and notched for the entry of the wrapping-. y

`14.1 Incombination, mechanism for .serving a, wrapping, about overlapping, portions nof a hookv shankl and gut, or the like, a hollow member projectable to receive' a portion of such -wrappingtherfeabout and notched for thek entry ofthe ywrapping and la retractable strand gripper adapted ,to enterfthe hollow of such. notched member: through Athe A turns there ab out intoA holding engagement with" the part of thewrappinglin said notch. n 1 5. Inpcombination, mechanism for serving a .wrapping aboutxoverlapping portions of a hook` shank and gut,or Ythe like, ahollow member projectable to receive a'portion -of suoli wrapping thereabout and notched for theentry of the wrapping anda. guide with whichthe notched member cooperates to eff feet severance of the strandl in the notch ofthe same. Y c

16. In combination, mechanism for serving a wrapping vvabout overlapping portions of Ya` hook shank and gut,.or the like, a hollow member, means for eectingt-heprojection of the same to receive Aa sportionof `thewrapping thereabout, a strand gripper and .means for effecting -movement ofthe same toward and Vaway from the vwrapping:receivingpor-r tion ofthe hollow projectable member.

17 combination, mechanism forserving` a wrapping, about` overlapping. portions of a hook-shank andgut, or the like, a hollow member positioned to receive a-portion ofthe wrapping "thereabout, ka strand grip# per and means for effecting movement of said strand gripper toward and Vaway Vfrom the hollow-of said hollow member.l

-`18`. In combinatiomjlmechanismfor serving a wrapping'about overlapping portions ofwa hook vshank andgut; orthe like,1.an'd"a hollow member positioned to receive a portion of said wrapping thereabout and provided with a les cutting edge for severing the wrapping applied about the same.

19. In combination, mechanism for serving a wrapping about overlapping portions of a hook shank and gut, or the like, a hollow member positioned for receiving a portion of said wrapping thereabout and notched for the entry of a strand of the wrapping, means associated with said notched portion for severing a strand of the wrapping in the notch and means for efectin relative shifting of the hollow member an said last mentioned means to effect the severance of the strand.

20. In combination, mechanism for serving a wrap ing about overlapping portions of a hook sliank and gut, or the like, a hollow member positioned to receive a portion of said Wrapping thereabout and provided with a cutting edge, a cooperating member associated with said cutting edge and means for effecting a strand severing ralative movement of said cooperating member and hollow member.

21. In combination, relatively rotatable hook holding and strand guiding means for serving a wrapping about overlapped portions of a hook shank and gut, or the like and means for automatically severing the strand of the wrapping at the end of a predetermined severing operation.

22. A hook Snelling maching comprising in combination, relatively yrotatable hook holding and strand guiding means for serving a wrapping about overlapped portions of a hook shank andgut, or the like, strand tying means and means for effecting the operation of said strand tying means at the end of a predetermined serving operation.

23. In combination, a rotatable shaft member and associated strand serving means, a sleeve member rotatable with the shaft, said sleeve member and shaft member being relaesi tively shiftable longitudinally in respect to each other, hook holding means carried by said members and strand severing means carried by said members and operable in the relative longitudinal shifting movement of said members. y 24. In combination, a rotatable shaft memkber and associated strand serving means, a

sleeve member rotatable with the shaft, said sleeve member and shaft member being relatively shiftable longitudinally in respect to each other, hook holding means carried by said members and strand severing means carried by said members and operable in the relative longitudinal shifting movement of said members and including a hollow severing blade carried by the sleeve member and a part carried by the shaft member and cooperating with said hollow blade.

In testimony whereof I aiix my signature.

WALTER S. TORRENCE. 

